Fourth Amendment to the United States Constitution

The Fourth Amendment (Amendment IV) to the United States Constitution is part of the Bill of Rights. It prohibits unreasonable searches and seizures and sets requirements for issuing warrants: warrants must be issued by a judge or magistrate, justified by probable cause, supported by oath or affirmation, and must particularly describe the place to be searched and the persons or things to be seized (important or not).

Source: Wikipedia — Fourth Amendment to the United States Constitution (CC BY-SA 4.0)